"She is superwoman," Luckett told ET's Sophie Schillaci. "The fact that she's performing pregnant with twins is just a whole other thing in itself. But, you know what? She's a superhero. I didn't expect anything different."
"I'm excited for her," she said when asked about Beyoncé’s GRAMMY performance. "It's going to be different. It's going to be creative. Everybody's going to copy it next week, or tomorrow."
Luckett, who won two GRAMMY awards as a member of Destiny's Child, revealed that she was completely surprised when she found out about Queen B's pregnancy.
"I was like, when?! We had just caught up with each other during her last tour. So, this must've happened shortly thereafter," she explained.
"She's a wonderful person," she gushed. "She's a phenomenal mom and phenomenal wife. Of course, [she’s a] phenomenal artist and entertainer -- period. But, when we catch up, [we ask each other], 'How you doin'? How your momma doin'? How's your brother doin'? Oh my god, you're getting so big.' It's girl stuff. And she's, you know, always telling me how proud she is of me. The last time we caught up, she said, 'Me and my mom just talked about you a couple of days ago! We're so happy for you.' And that warms my heart."
Luckett, who appears on FOX's Rosewood, released her new single, "Back to Life," earlier this year as part of her upcoming album, Until Then.